Magnetic Effects Of Current Question 9
Question: Assertion : The energy of charged particle moving in a uniform magnetic field does not change. Reason : Work done by magnetic field on the charge is zero.
Options:
A) If both assertion and reason are true and the reason is the correct explanation of the assertion.
B) If both assertion and reason are true but reason is not the correct explanation of the assertion.
C) If assertion is true but reason is false.
D) If the assertion and reason both are false.
E) If assertion is false but reason is true.
Show Answer
Answer:
Correct Answer: A
Solution:
The force on a charged particle moving in a uniform magnetic field always acts in direction perpendicular to the direction of motion of the charge. As work done by magnetic field on the charge is zero, [W = FS cosq], so the energy of the charged particle does not change.
BETA
